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(Nomodel.) y I l iH. J. COLBUR'N 8v M. J. OWENS. GLASS BLOWING MACHINE.y v .No..594,343. PatentedNow-r. 23, 1897.

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H. J. COLBURN 8v M. J. OWENS.

GLASS BLOWING MACHINE.

No. 594,343. Patented Nov. 23, 1897.

- UNITED STATES PATENT FFICE.

HENRY JOSEPH COLBURN AND MICHAEL JOSEPHl OW'ENS, OF TOLEDO, OHIO,ASSIGNORS TO THE TOLEDO GLASS COMPANY, OF SAME PLACE.

GLAss-BLowlNe MACHINE.

SPECIFICATION forming part vof Letters `Patent No. 594,343, datedNovember 23, 1,897.

Application filed May 24:, 1897. Serial No. 637,849. (No model.) v

To all whom it may concern.-

Be it known that we, HENRY J osEPH CoL- BURN and MICHAEL JOSEPH OWENS,citizens of the United States of America, residing at Toledo, in thecounty of Lucas and State of Ohio, have invented new and usefulImprovements in Glass-Blowing Machines, of which the following is aspecification.

This invention relates to glass-blowing machines, and to`that classthereof which is operated both manually and mechanically for effectingthe structural purposes of ythe machine, the object being to provide aglassblowing'machine of this class of improved construction adapted tobe advantageously manipulated by one person; and the invention consistsin the peculiar construction and arrangement of the several operativeelements of the machine, all as hereinafter fully set forth, and moreparticularly pointed out in the claims.

In the drawings forming part of this speciication, Figure 1 is a frontelevation of a glass-blowing machine embodying our invention. Fig. 2is aside elevation.- Fig. 3 is a sectional viewof parts of the frame of themachine and other contiguous parts having relation to the air-supply andthe regulation of the same for the blow-iron and is fully describedbelow. Figs. 4, 5, and 6 illustrate detail parts below described.

Referring to the drawings, 2 indicates the frame parts of the machine. Afixed moldtable 3 is secured across the lower end of the frame.v Themold, paste or otherwise, comprises two sections 4 4, having suitablebases 5, whereby said sections are adapted to slide in a right line fromand toward each other on said table, whereby the mold is opened andclosed.y The said sections are operatedI for opening and closing, asaforesaid, by means of a lever 6, pivoted on said table and having twoshort arms thereon at right angles to the handle thereof, to which armsare pivoted two connecting-bars 7 and 8, and the latter are pivotallyconnected to said mold-sections, so that by swinging Jsaid lever 6 thesections of the mold are operated, as and for the purpose above stated.A blow-iron rest 54 extends across the machine above the moldtable 3.

Provision is made for wetting the mold, as usually required Vin pastemolds after blow- Ving an article, by providing water-distributingreceivers 13, connected to one side of the frame of themachine, as inFigs. 1 and 2, to which water is supplied through a pipe 12 from anysuitable source. From said receiver the water is conveyed to eachsection of the mold by two pipes 9 9. The open positions of themoldsections are indicated in Fig. 1 by dotted lines, and said two pipes9 9 terminate in two spraying-bulbs 10 10 in such positions that waterescaping therethrough when the mold f parts are open will be suitablyapplied to each part or section thereof. The admission of water to saidtwo pipes 9 9 is governed by a piston-valve 14, which enters saidreceiver 13 from the bottom (see Figs. 1, 2, and 5) and is held normallyin a position shown in Figs. 1 and 2-that is, an upward one-and when soheld its upper end closes the water-inlets of said pipes 9 9, but bypressing down a footlever 16, connected by a chain or cord to saidpiston, the latter is drawn downward to the position shown in Fig. 5,thereby permitting water to enter said pipes 9 9 and to be deliveredtherethrough to spray the mold, as stated, the spring 15 carrying thepiston upward again when said lever is freed.

A hollow shaft 17 is hung to rotatein suitable bearings at the upper endof the frame and has a gear 18 fixed thereon, on the outer face of whichis a circular cam 19. A ratchetwheel 2O is secured on said shaft 17,Figs. 1 and 4, and by the side of said wheel 20 is a sprocket-wheel 21,free on said shaft'17, but having a ratchet-latch 22 thereon forengagement with the teeth of said wheel 20, said latch being actuated bya spring 23. A sprocket-chain 24 passes over and engages said wheel 21,a strap 25 preferably being attached to one end of said chain and a cord26 to the opposite end. The movement of said chain 24 on the saidsprocket-wheel is, as below described, limited, and hence need notextend far :from the wheel on either side. Therefore said strap and saidcord are connected to the ends thereof.- A weight 27 is suspended on oneend of said sprocket-chain indirectly by said strap, and the latter runsagainst a guide-roller 28, hung on said frame,

IOO

whereby said weight is prevented from engaging the frame in its upwardand downward movements, as below described.

A shaft 29 is supported across the lower end of the machine, upon whicha foot-lever 30 is supported, on the rear end of which is acounterbalance 3l, and near the outer end of said lever 30 is attachedsaid cord or chain 2G. By working said foot-lever 30 the saidsprocket-chain is drawn over said wheel 21, thereby rotating the latterfreely; but upon releasing said foot-lever said weight moves downward,thereby causing said sprocketwheel and the ratchet-wheel 20,engagedthereby through said latch 22 thereon, and the shaft 17 and cam-bearinggear 18, to be rotated momentarily. The said coun terbalance 3l on thelever 30 serves to cause the entire elfect of the weight 27 to beexerted in rotating said wheel 21 and its said connected parts.

By means of the above-described inexpensive mechanism means areprovided, operated by gravity, for adequately governing the supply ofair to the blow-iron of a glassblowing machine, both in respect to theVolume and to the duration of the air-supply to said blow-iron.

A shaft 32 is supported in bearings at the upper end of the machine,having a pinion 33 thereon engaging with said gear 18. Said shaft 32carries thereon a fan-governor 34, having the radial arms, as shown,bearing graduated marks, and fans 35 on said arms adjustable toward andfrom the axis of said shaft 32, whereby the resistance induced by saidregulator to the free rotation of said last-named shaft and to otheroperative elements, connected therewith is varied, for the purposehereinafter described.

It is obvious that a fan-governor construction containing Hatsheet-metal arms,as sometimes made, which are arranged to be so turnedin the hub of the governor as to present a face of variable area forair-resistance, may be substituted for that herein shown; but the type of regulator herein shown is preferable in respect to said adjustablefeatures.

A piston 36, adapted to slide within said shaft 17 and a part of saidframe, has its free end entering the latter, as shown in Fig. 3. On saidframe part is secured a short airconducting pipe 5G, communicating withthe cylindrical chamber therein, in which said piston 3G moves, and tosaid pipe 56 is connected one end of an air-conduit 40, whose oppositeend may be connected to any suitable fan or other device for supplyingair under pressure. Said piston 36 has on its outer end a iiattenedhead,having a slot therein, as shown, with which a pin on a Vibratorylever 37 engages, said lever being pivotally connected by one end to apart of said frame of the machine, as clearly shown, and bearing on itsopposite free end a freely-turning roller 38, whose periphery bearsagainst the border of said cam 19 on said gear 18. By means of saidrotating cam on the gear 18 the lever 37 are communicated to said pistonl 36, whereby its free end under the end of said air-supply pipe 5G ismoved with graduallyincreasing rapidity from the position shown in Fig.3, in which the air-current is shut off, to one fully uncovering the endof said supply-pipe and then back again to the position shown. Thepurpose of said movement of the piston 36 is to provide in a machine ofthis class means for providing an air-supply for blowing a glass articlein the mold through the blowiron and connections below described betweenthe latter and the said chamber to which said air-conducting pipe 5G isconnected, which when the glass in the mold is hottest is of littlevolume, but which volume is gradually increased owing to the action ofsaid cam 19 upon the piston 36, as above described. The said duration ofthe air-supply is dependent upon the timein which the weight 27 cancomplete its falling movement after it shall have been raised, as abovedescribed,and the speed of said weight-falling movement is adjustablethrough said fan-governor and the connection of the same with the saidpulley 21, which is primarily connected with said weight. If the machinebe adjusted for an air-supply of maximum duration, the fans 35 on thearms of the said governor are moved near the eX- tremities of saidarms,thereby interposing increased resistance to the rotary motion ofthe governor and through the latter and said connections therebetweenand the said pulley 21, on which said weight hangs, retarding thefalling motion of the latter, thus increasing the duration of theair-blast through the blow-iron into an article while being formed inthe mold. The volume of air conveyed to the article within the mold isregulated by the cam 19, which for said purpose may be of any suitableoutline best adapted to produce a gradual or sudden increase ofexpanding effect upon an article being blown in the mold or an entirestoppage of air-supply ata given time. The volume of air is adaptedordinarily to be increased while the heat in said article being blowndecreases. The said duration of the air-supply is made adjustable, asaforesaid, for the purpose of adapting the action of the machine in thisrespect to the proper treatment of glass articles containing a greateror less quantity of glass in view of the fact that heavy thick articlesrequire more time or a longer duration of the blowing action forexpanding them in the mold than do thinner lighter ones. The blow-ironhas a rotary motion imparted thereto, as below described, by means whichprovide for rotating it a longer or shorter time, whereby the durationof its rotary movements shall correspond to that of the supply of air tosaid blow-iron. A hollow vertical shaft 41 is suitably connected withsaid chamber in which the end of the piston 36 operates, as described,by connections IOO IIO

42 and 43, Fig. 3, said hollow shaft being supported in and by certainframe parts, as shown. A tubular blow-iron sleeve 44, whose lower end isadapted to receive the upper end of the blow-iron 53, is supported to berotated in a part of the frame 2 by a gear 47,having aspline connectiontherewith, whereby said sleeve` may slide in said gear, and the latteris given a rotary motion by a hand-crank on a sprocketwheel 51, thelatter being connected by a chain 52 to a second sprocket-wheel 50 on ashaft 48, on which is a gear 49, engaging said gear 47. The saidconnection between said hand-crank sprocket-wheel and said sleeveV 44provides for rotating said blow-iron and the glass thereon in the moldby the operator While the article is being blown. Alever 45, pivoted onthe frame of the machine, has one end engaging in a concentric groove insaid sleeve 44, and to the free end of said lever is attached a cord 46,which is grasped by the operator for raising said blow-iron sleeve 44off from the end of the blow-iron 53 when the latter,with the blownarticle, is to be removed. Said blow-iron 53 has a suitable engagementwith saidvblow-iron sleeve 44, whereby the latter rotates the iron. Anenlargement 55 on the blow-iron 53 provides for supporting the latter onsaid blow-iron rest 54 and holding the same while the glass-blowingoperation proceeds.

The operation of the above-described devices is as follows: The operatorwets the mold, as described, and then operates the lever 6 to open themold and then, gathering the glass on the blow-iron 53, places thelatter in the machine in the position shown in Fig. 1 and closes themold and at the same time pressing the foot-lever 30 to raise the weight27 and set the mechanism at the top of the machine in motion, asdescribed,where by the proper air-supply to the blow-iron is given, andgrasping said hand-lever on the sprocket-wheel 5l and turning the latterhe, through the same, imparts rotary motion to the blow-iron until thearticle in the mold is formed and partly cooled. The operater then opensthe mold and removes the blow-iron and the blown article thereon fromthe machine. Then operating the foot-lever 16 water is permitted to flowthrough the pipes 9 9, thereby wetting the mold parts, as described,after which the operations are repeated for blowing each succeedingarticle.

Having thus described our invention, what we claim, and desire to secureby Letters Patent, is-

1. In a glass-blowing machine of the class described, a mold, ablow-iron, means for supporting the blow-iron in operative relation tothe mold, and separately-organized mechanisms, each subject to themanipulation of the operator of the machine, forindependent temporaryaction for admitting air under pressure to said blow-iron, for rotatingthe 'blow-iron, and for wetting the mold, substantially as set forth.

2. In a glass-blowing machine of the class described, a mold, ablow-iron, means for supporting the blow-iron in operative relation tothe mold, separately-organized mechanisms, each subject to themanipulation of the operator of the machine for independent, temporaryaction for admitting air under pressure to said blow-iron, for rotatingthe blowiron, for wetting the mold, and mechanism cooperating with thatwhich admits said air to the blow-iron whereby the volume of air soadmitted is gradually increased during the formation of an article inthe mold, substantially. as set forth.

3. In a glass-blowing machine of the class' described, a mold, ablow-iron, means for supporting the blow-iron in operative relation tothe mold, separately-'organized mechanisms, each subject to themanipulation of the operator of the machine for independent, temporaryaction for admitting air under pressure to said blow-iron, for rotatingthe blowiron, for wetting the mold, and mechanism wherebyl the durationof the air flow through the blow-iron is increased or diminished, asrequired by the quantity of glass in the article being operated upon,substantially as set forth.

4. In a glass-blowing machine, a mold, a blow-iron, means for supportingthe blow-iron in operative relation to the mold, for admitting andcontrolling the flow of air to, and through the blow-iron to the mold,and for increasing and diminishing the duration of said air iiow,substantially as set forth.

5. In a glass-blowing machine of the class IOO described, meanscooperating with the glassblowing air-supply of the machine, whereby theduration of said air-supply for action upon an article being blown ismade variable, substantially as described.

6. In a glass-blowing machine of the class described, a sectional mold,a mold-table on which the mold-sections are supported for movements in aright line from and toward each other, a blow-iron, means for supportingthe blow-iron in operative relation to the mold, means for moving saidmold-sections to open and close the mold, separately-organizedmechanisms, each subject to the manipulation of the operator of themachine for independent temporary action for admitting air underpressure to said blow-iron and mold, for rotating the blow-iron, and forwetting the mold, substantially as set forth.

7. In a glass-blowing machine of the class described, a mold, ablow-iron, means for supporting the blow-iron in operative relation tothe mold, and gravity-actuated mech- IIO 9. In a glass-blowing machineof the class described, a mold consisting of two disconnected sections,a table on which said moldsections are supported for movements in aright line from and toward each other, means for manually sliding saidsections to open and close the mold, conducting-pipes conveying andapplying Water to said mold-sections, a Valve in said pipes, and afoot-lever connected with said Valve for operating the same, whereby theflow of Water through said pipes to the mold-sections is controlled,substantially as set forth.

10. In a glass-blowing machine of the class described, a mold, ablow-iron, means for 15 of air so admitted, whereby said volume is 2oincreased during the blowing of an article in the mold, substantially asset forth.

HENRY JOSEPH COLBURN. MICHAEL JOSEPH OWENS.

Witnesses: l

FREDERICK LYMAN GEDDEs, HENRY CORNELL TRUEsDALL.

